Cita APA

Sheikh, A., Cook, A., & Ashcroft, R. (2004). Making cycle helmets compulsory: Ethical arguments for legislation. The Royal Society of Medicine.

Chicago Style Citation

Sheikh, Aziz, Adrian Cook, i Richard Ashcroft. Making Cycle Helmets Compulsory: Ethical Arguments for Legislation. The Royal Society of Medicine, 2004.

Cita MLA

Sheikh, Aziz, Adrian Cook, i Richard Ashcroft. Making Cycle Helmets Compulsory: Ethical Arguments for Legislation. The Royal Society of Medicine, 2004.